How Clean Is 1j Lake?
1j Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Phosphorus: 56 µg/L. Trophic State Index: 62.
Cleanliness Snapshot
| Metric | 1j Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Phosphorus | 56 µg/L | <30 = clean |
| Trophic State Index | 62 | <50 = clean |
How does 1j Lake compare?
1j Lake's grade of C matches or beats the Wisconsin state average of C. It ranks #17 of 36 lakes in Lancaster County by water quality score.